Valuating a cannabis business requires coming up with creative comparisons to established industries, such as tulips and wine.

That’s the space Justin Costello operates in. The CEO of Seattle-based GRN Funds, he brings years of experience making deals in the investment banking sector and said he has completed 80-plus cannabis deals.

Canadian medical marijuana companies are starting to tap debt markets in a big way to fund their explosive growth, which until earlier this year had been financed almost entirely through stock offerings.

The Average Market Rate (AMR) for a pound of wholesale marijuana in Colorado’s recreational market has hit an all-time low, pushed down by the continuous flow of new cultivation facilities coming online, increased efficiency among existing growers and a rising number of outdoor grow operations.